Half to meewin mckaig



(N0 Mode-1,) 3 Sheets-Sheet l.

W. J. MUNOASTER.

METAL BENDING AND STRAIGHTENING MAGHINE. No. 334,455. P ed Jan. 19,1886.

Fig.1.

Witnesses.-

N PETERS. Phnw-Lilhqgnphcr. Washington. D. c.

(No Model.) 3 Sheets-Sheet 2.

'W. J. MUNOASTER. METAL BENDIN'G AND STRA'IGHTENING MACHINE. No.334,455.

Patented Jan. 19, 1886.

N. PETERS. Phalo Lllhugmplmr. Wnshingm. n, c.

(No Model,)

W. J. MUNOASTER.

3 Sheets-Sheet 3.

METAL BENDING AND STRAIGH TEN ING MACHINE.

Patented Jan. 19, 1886.

.mlll W UNITED STATES PATENT OFFICE.

\VALTER J. MUNOASTER, OF CUMBERLAND, MARYLAND, ASSIGNOR OF ONE- HALF TOMERVVIN MOKAIG, OF SAME PLACE.

METAL BENDING AND STRAIGHTENING MACHINE.

SPECIFICATION forming part of Letters Patent No. 334,455, dated January19, 1886.

Application filed November 25, 1885. Serial No. 183,951.

To all whom it may concern.-

Beit known that I, WALTER J. ll lUNOASlER, ofOumberland, in the countyof Alleghany and State of Maryland,have invented certain new and usefulImprovements in Metal Bending and Straightening Machines, of which thefollowing is a specification.

My invention relates to machines for straightening and bending metalbars and shafting, and is designed as an improvement upon the machinefor which Letters Patent were granted to me bearing date the 9th day ofJune, 1885, and numbered 319,603.

In the drawings,Figure 1 is a front elevation of my improved machine;Figs. 2 and 3, views illustrating the means for raising and lowering therollers which support and turn the shaft; Fig. 4, a top planviewof theroller-frames and rollers; Fig. 5,a section on theline m0 of Fig.4; Fig.6, an end View ofthe maehine,part1y broken away to show thereversing-gear; Fig. 7, a

vertical transverse section through the press;-

Fig. 8, a view of the gearing for giving motion to the rope.

the operator or attendant to more quickly and easily manipulate andcontrol the machine, to render the same simpler and more compact, andgenerally to cheapeu andimp'rove its construction.

In its general construction the machine is similar to that covered by myformer patent, above referred tothat is to say, it embraces a bed orframe provided with rollers upon and by which the shaft may be supportedand rotated, a traveling press movable from eud'to end of said frame,adapted to support the shalt and to press or act upon the same betweenthe points of support, suitable belting and gear- 0 ing for impartingmotion to and devices for controlling the motions of the various parts.

In the drawings, A indicates the main frame or bed of themachine,supported,as before,upon feet or base-blocks B, and formed withsuit- 5 able guides or ways, a, to support and guide the wheels b of thetraveling press 0.

D indicates a stationary frame, and E a sliding frame, each resting uponthe bed or frame A, the former fixed thereon at or near one end,

0 and the latter being movable in the direction The objects of myinvention are to enable (No model.)

of the length of the frame. Each of the frames D E is formed withupwardly-extending arms a, between which is pivoted a second frame ormetal beam, F, in which are journaled two rollers, G, which serve tosupport and rotate 5 5 the shaft under operation, as in the previousmachine. 7 Each roller G or'its shaft is formed or provided with aWorm-wheel, b, and a shaft, H, also journaled in the secondary frame F,carries two worms or screws, I I, which mesh 6 with and rotate the wormsb b of rollers G in one and the same direction. The rear or outer end ofthe shaft H of each frame F projects outward beyond said frame, and isprovided with a slot or groove, 0, to receive the'spliu'e 6 or feather dof a pulley, J, about which the driving-belt is passed which rotatessaid pulley and its shaft H. Each pulley J is formed with acircumferentially-grooved hub, and yokeK is seated within the grooveofsaid hub, and has projecting arms or pins 6, which extend into slots fof a forked arm, L, projecting outward one from each of the frames D andE. The slotted arms and the pins permit the yoke to rise and fall withthe pulley, but 7 5 prevent any appreciable end-play of the pulley,suchas might interfere with the free travel and proper action of itsdriving-belt, while the shaft H is permitted to move through the pulleyas required by the rise and fall of the So beam or frame.

Pivotally attached to the free or moving forward end of each secondaryframe F is a toothed rack or bar, M, the back of which bears against arod or shaft, N and the teeth of which are 8 5 thus maintained inengagement with a pinion, O, of which there are two, mounted upon ashaft, P,extending length wise of frame A along its front. The shaft 1is provided with aslot or groove, f, and the pinion O of the sliding 0frame E F is provided with a feather or spline, g, which enters saidgroove, and thus causes the pinion to turn with the shaft, thoughleaving it free to slide thereon as said frame is moved along the bed ofthe machine. lVhen- 5 ever it is desired to lift and turn the shaft orbar undergoing the operation of the press 0, it is only necessary toturn shaft P in the proper direction to raise the rack-bars M, thusraising frames or beams F and their rollers G until the shaft is raisedclear of the press or supports. The beams or frames F are held at anydesired elevation by means of a pawl, h, carried by the shaft or rod N,which pawl engages with a ratchet-wheel, Q, secured upon the shaft I.

For the purpose of supporting the shaft 1, the bed of press 0 is formedwith an arm, i, through which said shaft passes, and for the purpose ofenabling the attendant to remain always at the press and to controlshaft Pfrom that point I place within said arm a tubular sleeve, j,which encircles the shaft 1, is free to turn within said arm, isfurnished with a spline or feather, 7;, to enter the groove f of theshaft, and is furnished with a handlevcr, Z, by which the sleeve, andconsequently the shaft P and pinions 0, may be turned. In like mannerthe rod N is grooved and furnished with a feathered or spliued sleeve,121, having a handlever, a, and free to slide along the rod, and thusenabling the attendant to keep the pawl h under his control withoutmoving away from the press.

It will be seen that the construction thus described permits the readyraising and lowering of the shaft undergoing the action ofthe machine,saves time, and simplifies the construction.

In my former machine the screw-stem of the ram or bunter of the presspassed through a nut having a concave upper face bearing against aconvex face or seat in the reciprocating beam of the press. I nowsubstitute for said former arrangement a heavy nut, R, of cylindricalformthat is to say, a hole is bored through a substantial cylindricalpiece of metal at right angles to the axis thereof, and said hole isthen threaded to receive the screw-stem of the hunter S. The nut isplaced with its axis in a horizontal planeat rightangles to the lengthof the reciprocating beam T of the press, and its ends form journals.upon which the nut rocks in adjustingand adapting itself to the varyinginclination of the screwstem. This construction I find much moresatisfactory, and at thesame time cheaper than that formerly adopted.

The driving-gear constitutes the next feature of my invention, and theimprovements are designed to bring the belts down closer to the floorand to leave them less in the way. \Vith this object in view I constructthe press as before, so far as the driving mechanism is concerned, andin all respects except where differences are specifically mentioned; or,in other words, I provide the press with a shaft, U, carrying aneccentric, V, which gives motion to the reciprocating beam T, and carrya ing also a gear-wheel, \V, firmly secured upon the shaft, and anidler-pulley, X, loose upon said shaft. I further provide a shaft, Y,carrying a rigidlyattached pinion, 0, and a bandpulley, Z.

At one end of frame A, supported in a box or bearing, 1), thereon, andin an additional box, 1), carried by a standard, A, apart from frame A,is a main driving-shaft, B, from which motion is given to the variousparts of the machine.

0 indicates a band-pulley mounted upon said shaft, and D a belt or bandpassing about said pulley G; thence parallel with frame A beneath andupward about pulley Z; thence beneath and upward about loose pulley X;thence over a pulley, E, carried by a stand ard, F, at the end of frameA farthest removed from the driving-shaft B; thence down to and beneatha pulley, G, and back to pulley C of the driving-shaft. The shaft B alsocarries a grooved band-pulley, II, from which a band or belt, 1, passesover and around pulley J of shaft H of traveling-frame E F; thence backover and around an idlenpulley, J, car-' ried by the frame E; thence toand beneath a pulley, K, carried by the fixed frame D, upward over thepulley J of said frame, downward beneath a pulley, L, and back to pulleyH of the driving-shaft. This arrangement permits the same travel ofcarriage or frame E as in my former machine, but is simpler and morecompact.

M indicates a grooved drum, firmly secured upon shaft or axle N.journaled in the frame A near the end at which driving-shaft B isplaced. From this drum a wire rope or cal -le, 0, passes to and about asheave or pulley,P', carried by a swiveled and perfectly-adjustableyoke, Q, at the opposite end of frame A; thence back to drum M, uponwhich is wound a sufficient length of the rope or cableto effect amovement of the press 0 (which is clamped to said rope) from one end ofthe frame to the other, the two ends of the rope being made fast to thedrum.

To give motion to the drum and permit the reversal of that motion atwill, I provide the gearing illustrated in dotted lines in Fig. 1 and infull lines in Fig. 8.

R indicates a pinion fixed securely upon driving shaft B and meshingconstantly with a pinion, S, turning loosely upon a stud or axle carriedby an arm, q, projecting radially from a hub or boss, T, secured upon arockshaft, U, one end of which is reduced in diameter, and has a bearingin a socket made in the end of shaft B, while the other end is carriedby a box, 1', on frame A.

To the outer end of rock shaft U is secured a lever, W, the free end ofwhich is connected by a link, 8, to a second lever, \V, pivoted at ornear the floor, and in turn connected by link t with a rod, it, carriedin guides or hangers from end to end of the frame.

The shaft N of the drum carries a gearwheel, X, with which the pinion t"meshes when the rock-shaft U is rocked or turned to throw the piniontoward said gear-wheel, or to the position indicated in dotted lines inFig. 1.

Y indicates a pinion meshing constantly with gear-wheel X, and in suchposition that when rock-shaft U is turned to carry the pinion S awayfrom and out of engagement with ICO gear-wheel X said pinion S willgointo mesh with the pinion Y, and as the motion of shaft B will then betransmitted to gear-wheel X from pinion B through two intermediatepinions, instead of one, it follows that the direction of its rotationand that of the drum will be reversed.

The special arrangement of the reversinglever and its connections isdesigned to give adequate power to effect the change easily and withcertainty while bringing the sliding rod Having thus described myinvention, what' I claim is 1. In a machine for straightening or bendingshafting, &c., the combination, with a supporting bed or frame and witha travel ing press, of transverse frames, as D E, each provided with abeam or secondary frame, F, bearing rollers G, and adapted to be raisedand lowered, substantially as and for the purpose set forth.

2. In combination with a bed orsupporting frame, a press movable on saidframe, transverse frames resting upon said bed, beams pivoted in saidtransverse frames'and provided with rollers to sustain a shaft,rack-bars attached to the beams, and ashaft extending lengthwise of themain frame and provided with pinions to mesh with the rack-bars, as andfor the purpose set forth.

3. The combination of a bed or frame, A, a press, 0, movable thereon,transverse frames D E, mounted upon frame A, beams F, pivoted in framesD E, provided with rollers G and rack-bars M, shaft P, provided withpinions 0 and ratchet-Wheel Q, rod or shaft N, provided with pawl h, anda sleeve, m, movable lengthwise of said shaft, and provided with handlea.

at. In combination with frame A, crossframe D or E, and beam F, pivotedin said cross-frame, rollers G, carried by said beam, at grooveddriving-shaft for said rollers also carried thereby, a pulley mountedupon said shaft and provided with a feather to enter the groove, and aguide or holder for said pulley adapted to permit the rise and fallthereof with the shaft,but to prevent its movement in the direction ofthe axis.

5. In combination with frame A, press 0, and transverse frame D or E,beam F, pivoted in said transverse frame, rollers G, carried by saidbeam and provided with worm-wheels b, shaft H, provided with worms orscrews I and groove a, pulley J, having a circumferentially-grooved hub,and a feather to enter the groove 0, a yoke seated in thecircumferential groove of the hub, and a support adapted to hold theyoke against movement lengthwise of shaft H, but permitting it to riseand fall with said shaft.

6. In combination with main frame A,travcling press 0, and slidingcross-frame E, beam F, hinged to frame E, and bearing rollers G, rack M,attached to the free end of the beam F, shaft P, provided with slidingpinion O, and splined sleevej, swiveled in an arm ofthe press-frame,encircling shaft P, and provided with lever or handle Z.

7. In combination with frame A, crossframes D E, hinged beams F,provided with rack bars M, and shaft I, carrying pinions for raising andlowering said beams, a ratchetwheel secured upon said shaft, 2. secondshaft, N, provided with pawl h for locking said ratchet and shaft, and ahand-lever mounted and free to slide upon shaft N, but locked thereto bya spline or feather, whereby the operator is enabled to slide the leverto and to control the pawl from any desired point.

8. In a machine for straightening and bending shaftiug, &c., thecombination, with a supporting-bed, of a press, 0, having avertically-reciprocating beam, T, provided with a horizontal circularopening,a cylindrical block or nut, R, seated and free to turn in saidopening, provided with a transverse threaded hole, and a screw-stem, S,passing through said hole and adapted to act upon the shaft or barbelow.

9. In combination with frame A, having pulleys C, E, and G, and withpress 0, having pulleys X and Z, belt D, passing about said pulleys, inthe manner described and shown.

10. In combination with frame A, crossframes D E, and rollers G,driving-shafts H for said rollers, pulleys J- on said shafts,driving-pulley H, guide-pulleys J K L, and driving belt I, passing aboutsaid pulleys, as shown and described.

11. In combination with frame A, traveling press 0, drum M, cable 0, andgear-wheel X, driving-shaft B, pinion R, carried by said shaft, pinionY, meshing constantly with pinion X, rock-shaft U, having arm q, andpinion S, carried by said arm and adapted to be brought into mesh withgear X or pinion Y at will.

12. In combination with frame A, press 0, cable 0, drum 1/ andgear-wheel X, pinions R and Y, rock-shaft U, provided with arm q,carrying loose pinion S, lever V, secured to the rock-shaft U, lever W,connected with lever V by a link, 8, and sliding rod a, connected withlever W, substantially as shown and described.

WALTER J. MUNOASTER.

Witnesses:

F. M. OFFUTT, 0. SMITH, Jr.

